.climate-study { --jc-ink:#132951; --jc-blue:#245fe2; --jc-line:#d4dce8; font-size:16px; line-height:1.65; }
.climate-study *, .climate-study *::before, .climate-study *::after { box-sizing:border-box; }
.climate-study header{background:none;padding:0;border:0;max-width:none;}
.climate-study details{font-size:16px;color:var(--jc-ink);}
.climate-study nav{border:0;width:auto;padding-top:0;margin-top:0;}
.climate-study .jc-lesson-heading{display:block;}
.climate-study :is(button,select,a,summary):focus-visible {outline:3px solid #245fe2;outline-offset:4px;}
.climate-study :is(p,li){max-width:none;}
.climate-study button,.climate-study select{font:inherit;color:var(--jc-ink);cursor:pointer;}
.climate-study button:disabled{opacity:.45;cursor:default;}
.climate-study h2{font-size:28px;line-height:1.2;}
.climate-study h3{font-size:24px;line-height:1.3;}
.climate-study h4{font:700 18px/1.4 'DM Sans',sans-serif;}
.climate-study .eyebrow{font-size:14px;letter-spacing:.09em;margin:0 0 10px;font-weight:700;}
.jc-header{display:grid;grid-template-columns:minmax(0,1fr) 200px;gap:32px;align-items:center;margin:22px 0 28px;}
.climate-study .jc-header h1{font-size:clamp(32px,3.3vw,48px);line-height:1.12;max-width:25ch;margin:0 0 18px;}
.jc-header img{width:200px;height:200px;object-fit:cover;border-radius:50%;}
.climate-study .jc-deck{font-size:18px;max-width:70ch;margin:0 0 14px;}
.jc-author{font-weight:700;margin:0 0 12px;}
.jc-meta{display:flex;gap:8px 24px;flex-wrap:wrap;font-size:14px;color:#455570;}
.jc-purpose{border-left:5px solid var(--jc-blue);padding:18px 24px;background:#eef3fc;margin-bottom:16px;}
.jc-purpose>p:last-child{margin:0;font-size:18px;}
.jc-details{border-top:1px solid var(--jc-line);border-bottom:1px solid var(--jc-line);margin:16px 0;padding:0;}
.jc-details+ .jc-details{border-top:0;}
.climate-study summary{cursor:pointer;font-weight:700;min-height:48px;padding:14px 4px;line-height:1.4;}
.jc-details[open]{padding-bottom:20px;}
.jc-info-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;padding:8px 4px;}
.jc-info-grid h2{font-size:23px;}
.jc-info-grid li{margin-bottom:10px;}
.jc-workspace{display:grid;grid-template-columns:268px minmax(0,1fr);gap:32px;align-items:start;margin:36px 0;}
.jc-syllabus{position:sticky;top:20px;}
.climate-study .jc-syllabus h2{font-size:25px;margin:0 0 12px;}
.jc-small{font-size:14px;line-height:1.5;color:#455570;}
.jc-desktop-lessons{display:grid;gap:8px;margin:22px 0;}
.jc-desktop-lessons button{border:1px solid var(--jc-line);border-radius:6px;display:flex;gap:12px;text-align:left;padding:16px 12px;background:white;min-height:94px;}
.jc-number{font-size:14px;font-weight:700;padding-top:2px;}
.jc-desktop-lessons strong{display:block;font-size:16px;line-height:1.3;}
.jc-desktop-lessons small{display:block;font-size:14px;margin-top:8px;}
.jc-desktop-lessons [aria-pressed=true]{background:var(--jc-blue);border-color:var(--jc-blue);color:white;}
.jc-current{display:none;font-size:14px;font-weight:700;margin-top:8px;}
[aria-pressed=true] .jc-current{display:block;}
.jc-route-note{border-top:1px solid var(--jc-line);padding-top:16px;font-size:14px;}
.jc-route-note p{margin-top:6px;}
.jc-mobile-picker{display:none;}
.jc-main{min-width:0;}
.jc-lesson{scroll-margin-top:24px;}
.climate-study .jc-lesson-heading h2{font-size:32px;margin:0 0 12px;}
.jc-lesson-heading>p:last-child{margin:0 0 20px;}
.jc-video{position:relative;aspect-ratio:16/9;overflow:hidden;background:#101c35;border-radius:6px;}
.jc-video>img{height:100%;width:100%;object-fit:cover;opacity:.78;}
.jc-video iframe{position:absolute;inset:0;width:100%;height:100%;border:0;}
.climate-study .jc-play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);min-height:54px;padding:12px 22px;display:flex;align-items:center;gap:12px;white-space:nowrap;border:0;border-radius:5px;background:white;color:var(--jc-ink);font-weight:700;box-shadow:0 4px 20px #13295130;}
.jc-video-controls{padding:10px 0;}
.jc-video-controls p{margin:0 0 4px;}
.jc-video-controls>div{display:flex;justify-content:space-between;gap:8px;align-items:center;flex-wrap:wrap;}
.jc-video-controls a,.jc-text-button{font-size:14px;min-height:44px;display:inline-flex;align-items:center;text-decoration:underline;text-underline-offset:3px;}
.jc-text-button{padding:0;background:none;border:0;}
.jc-step-nav{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:4px 0 12px;}
.jc-step-nav button{min-height:46px;background:#fff;border:1px solid #9cabc2;border-radius:5px;font-weight:700;padding:8px 18px;}
.jc-step-nav button:last-child{background:var(--jc-ink);color:white;border-color:var(--jc-ink);}
.jc-step-nav>span{font-size:14px;white-space:nowrap;}
.jc-video-info h3{font-size:20px;}
.jc-chapters{display:grid;grid-template-columns:1fr 1fr;gap:6px;}
.jc-chapters button{display:flex;gap:12px;padding:10px;min-height:44px;text-align:left;background:#f0f4fa;border:0;border-radius:4px;font-size:14px;}
.jc-chapters time{font-weight:700;min-width:42px;}
.jc-observe{padding:22px 0 20px;}
.jc-observe h3{margin:0 0 12px;}
.jc-practice{background:#ddf2f1;border-radius:6px;padding:26px;margin:12px 0 30px;}
.jc-practice h3{margin:0 0 8px;}
.jc-practice ol{padding-left:25px;}
.jc-practice li{padding-left:6px;margin-bottom:14px;}
.jc-practice li::marker{font-weight:700;}
.jc-product{border-left:3px solid #287f7a;padding-left:16px;margin:22px 0;}
.jc-product p{margin:6px 0 0;}
.jc-example{border-top:1px solid #a9cecc;}
.jc-reading{border-bottom:1px solid var(--jc-line);padding:8px 0 18px;}
.jc-reading h4{margin:6px 0 14px;}
.jc-reading p{margin:8px 0;}
.jc-self-check{border:1px solid var(--jc-line);border-radius:6px;padding:16px 20px 20px;margin:30px 0 0;min-width:0;}
.jc-self-check legend{font-weight:700;font-size:20px;padding:0 8px;}
.jc-self-check label{display:flex;align-items:flex-start;gap:12px;min-height:48px;padding:10px 0;cursor:pointer;}
.jc-self-check input{width:20px;height:20px;flex:0 0 20px;margin-top:3px;accent-color:var(--jc-blue);}
.jc-integrator{border-top:4px solid #a7dfe0;background:#f4f8fb;padding:28px;margin:36px 0 24px;}
.jc-integrator h2{margin:0 0 14px;}
.jc-source-guide{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.jc-source-guide h3{font-size:20px;}
.jc-sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;}
@media(max-width:1000px){.jc-workspace{grid-template-columns:230px minmax(0,1fr);gap:24px;}.jc-header{grid-template-columns:minmax(0,1fr) 150px;}.jc-header img{width:150px;height:150px;}.jc-chapters{grid-template-columns:1fr;}}
@media(max-width:760px){.jc-header{display:block;margin-top:20px;}.jc-header img{display:none;}.climate-study .jc-header h1{font-size:34px;}.climate-study .jc-deck{font-size:17px;}.jc-purpose{padding:16px;}.jc-purpose>p:last-child{font-size:16px;}.jc-workspace{display:block;margin-top:26px;}.jc-syllabus{position:static;margin-bottom:24px;}.jc-syllabus>h2,.jc-syllabus>.jc-small,.jc-desktop-lessons,.jc-route-note{display:none;}.jc-mobile-picker{display:block;}.jc-mobile-picker label{display:block;font-weight:700;margin-bottom:8px;}.jc-mobile-picker select{width:100%;max-width:100%;min-height:48px;border:1px solid #9cabc2;background:white;border-radius:5px;padding:10px;font-size:16px;}.jc-info-grid,.jc-source-guide{grid-template-columns:1fr;gap:12px;}.climate-study .jc-lesson-heading h2{font-size:28px;}.jc-practice{padding:20px;}.jc-integrator{padding:20px;}.jc-self-check{padding:12px 16px 16px;}.jc-step-nav button{padding:8px 12px;}.jc-video-controls>div{gap:0 12px;}.jc-video-controls a,.jc-text-button{font-size:14px;}.jc-play{max-width:95%;}.jc-video{border-radius:4px;}}
@media(max-width:360px){.climate-study .jc-header h1{font-size:30px;}.jc-step-nav button{padding:8px;font-size:14px;}.jc-practice{padding:16px;}}